Sumatra PDF is a PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, CBR reader for Windows

Use of Sumatra with Surface Pro

Dear all,

I’ve recently started to work with a Windows Surface Pro 7. As I was looking for an efficient, light, and easy-to-use software, I came across SumatraPDF.

However, I haven’t been able so far to find how to take annotations with my Surface Pen ?

I understand SumatraPDF is mainly a reader, but are they extensions available to make it possible to write down directly within the document, i.e. with Surface Pen?

Thank you in advance.

Have a good day,


Not yet
Annotation is work in progress, so the “Ink” variant you are looking for is not yet available in Pre-release.

Also Highlighting using a pen would possibly require a button to be assigned to the A key so as to be triggered after you strike across words

SumatraPDF is heavily customised towards keyboard commands (rather than touch) and thus some touch based actions can often need assistance via remapping to keyboard values.

Having said all that you can read a PDF in SumatraPDF and send it temporarily to for example Edge to be “inked” (that can be set up by using ExternalViewers to call Edge or any other app with the filename and page number) then press R to refresh in SumatraPDF to see the results instantly (there is a file size limit of 32Mb above which the two apps can’t share the same file)

Amazing, thank you for your answer!